org.argeo.cms/src/org/argeo/cms/internal/kernel/CmsShutdown.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import org.apache.commons.logging.Log;
   4 import org.apache.commons.logging.LogFactory;
   5 import org.osgi.framework.Bundle;
   6 import org.osgi.framework.FrameworkEvent;
   7 import org.osgi.framework.FrameworkUtil;
   8 import org.osgi.framework.launch.Framework;
   9
  10 /** Shutdowns the OSGi framework */
  11 class CmsShutdown extends Thread {
  12         public final int EXIT_OK = 0;
  13         public final int EXIT_ERROR = 1;
  14         public final int EXIT_TIMEOUT = 2;
  15         public final int EXIT_UNKNOWN = 3;
  16
  17         private final Log log = LogFactory.getLog(CmsShutdown.class);
  18         // private final BundleContext bc =
  19         // FrameworkUtil.getBundle(CmsShutdown.class).getBundleContext();
  20         private final Framework framework;
  21
  22         /** Shutdown timeout in ms */
  23         private long timeout = 10 * 60 * 1000;
  24
  25         public CmsShutdown() {
  26                 super("CMS Shutdown Hook");
  27                 framework = (Framework) FrameworkUtil.getBundle(CmsShutdown.class).getBundleContext().getBundle(0);
  28         }
  29
  30         @Override
  31         public void run() {
  32                 if (framework.getState() != Bundle.ACTIVE) {
  33                         return;
  34                 }
  35
  36                 if (log.isDebugEnabled())
  37                         log.debug("Shutting down OSGi framework...");
  38                 try {
  39                         // shutdown framework
  40                         framework.stop();
  41                         // wait for shutdown
  42                         FrameworkEvent shutdownEvent = framework.waitForStop(timeout);
  43                         int stoppedType = shutdownEvent.getType();
  44                         Runtime runtime = Runtime.getRuntime();
  45                         if (stoppedType == FrameworkEvent.STOPPED) {
  46                                 // close VM
  47                                 //System.exit(EXIT_OK);
  48                         } else if (stoppedType == FrameworkEvent.ERROR) {
  49                                 log.error("The OSGi framework stopped with an error");
  50                                 runtime.halt(EXIT_ERROR);
  51                         } else if (stoppedType == FrameworkEvent.WAIT_TIMEDOUT) {
  52                                 log.error("The OSGi framework hasn't stopped after " + timeout + "ms."
  53                                                 + " Forcibly terminating the JVM...");
  54                                 runtime.halt(EXIT_TIMEOUT);
  55                         } else {
  56                                 log.error("Unknown state of OSGi framework after " + timeout + "ms."
  57                                                 + " Forcibly terminating the JVM... (" + shutdownEvent + ")");
  58                                 runtime.halt(EXIT_UNKNOWN);
  59                         }
  60                 } catch (Exception e) {
  61                         e.printStackTrace();
  62                         log.error("Unexpected exception " + e + " in shutdown hook. " + " Forcibly terminating the JVM...");
  63                         Runtime.getRuntime().halt(EXIT_UNKNOWN);
  64                 }
  65         }
  66
  67 }